Seems like that would be rather pointless – easily subject to manipulation.
Just have enough of your supporters leave the chamber until you have a supermajority of those remaining present.
Or prevent opposing voters from being there – don’t tell them where/when the meeting is, or even have them arrested as they try to enter the meeting hall. That was a common one way back in King George III’s time; thus the rule in America that Legislators in Congress can’t be arrested on the way to a session.